The given equation;9(x+7)-6(x-3)=99 then the value of x in the given equation is 6.
The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of those variable would give a true mathematical statement.
For a solution , it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs, so solution to a system is the intersection of all its equation at single point
WE need to Solve the given equation;
9(x+7)-6(x-3)=99 .
Open the bracket;
9(x+7)-6(x-3)=99
9x + 63 - 6x + 18 = 99
Collect the like terms then solve it;
9x + 63 - 6x + 18 = 99
9x - 6x + 63+ 18 - 99 = 0
3x - 18 = 0
3x = 18
Divide by 3 on both sides the n we get;
x = 6
Therefore, the value of x in the given equation is 6.
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